A certain age

A CERTAIN AGE: The museums collection of vintage items includes bartender guides, from left, a pink elephant cocktail shaker set and Silverice, billed as a way to chill drinks without diluting them.

A CERTAIN AGE: The museums collection of vintage items includes bartender guides, from left, a pink elephant cocktail shaker set and Silverice, billed as a way to chill drinks without diluting them. (Isaac Brekken / for the Times)

A CERTAIN AGE: The museums collection of vintage items includes bartender guides, from left, a pink elephant cocktail shaker set and Silverice, billed as a way to chill drinks without diluting them.